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CompletedNCT03944785PRO-GoUpdated Jun 7, 2023Results posted

Clinical Outcome Assessment of Parkinson's Disease Patients Treated With XADAGO (Safinamide)

An observational study in Idiopathic Parkinson Disease, sponsored by Supernus Pharmaceuticals, Inc.. Completed at 30 sites in United States. Open to participants aged 30 Years to 80 Years. Per ClinicalTrials.gov, last updated 2023-06-07.

Sponsored by Supernus Pharmaceuticals, Inc. · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
164
Ages
30 Years to 80 Years
Sex
All
01

Study summary

This is a Phase IV, prospective, observational, post-marketing study designed to obtain additional data on the effect of XADAGO on motor and non-motor symptoms in Parkinson's Disease patients newly prescribed XADAGO.

Read the detailed description

This Phase IV, multicenter, prospective, observational study to evaluate clinician-reported outcomes and patient-reported outcomes related to motor and non-motor symptoms, health status, quality of life and treatment satisfaction in PD patients who have been newly prescribed XADAGO according to Package Insert indication.

This study also will gather "real world" data from a PD population in the US regarding their overall experience and degree of satisfaction with the use of XADAGO as an add-on treatment to their L-dopa regimen. Treatment experience will be captured using patient self-rating assessments as well as clinician ratings on assessments.

02

Conditions studied

  • Idiopathic Parkinson Disease

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Keywords

  • Parkinson's disease
  • Safinamide
  • Xadago
  • MAO-B inhibitor
  • off
  • non-motor symptoms
  • motor symptoms
  • levodopa
  • PD
03

In context

Parkinson Disease

4,583 studies on the registry are indexed under Parkinson Disease; 1,097 are open to participants now.

This study's enrollment of 164 is above the median of 97 across 1,081 observational studies indexed under Parkinson Disease.

Browse Parkinson Disease studies →

Lead sponsor

Supernus Pharmaceuticals, Inc. is the lead sponsor of 64 studies on the registry; 6 are open to participants now.

Of its 32 completed or terminated interventional studies of FDA-regulated products, 26 (81%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
30 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Parkinson's Disease patients who have been newly prescribed XADAGO

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Patient (and Care Partner, if required per Inclusion Criterion 6) is able to understand and provide signed informed consent and HIPAA authorization in English.
  2. Patient with diagnosis of idiopathic PD (all stages).
  3. Independent of the study, clinician's and patient's choice of treatment is XADAGO in accordance with the Package Insert indication.
  4. Patient is willing and able to participate in the study and complete study-related assessments for 2 months and, patients can continue for an optional 4-month study extension.
  5. Patient has access to an electronic device for the interim completion of PROs.
  6. Patient has an available Care Partner who is able and willing to assist with clinic attendance and completion of study assessments (e.g., PROs, health outcomes, etc.), if in the PI's opinion, assistance is needed to comply with all study visits and procedures.

Exclusion criteria

Exclusion Criteria:

  1. Any of the warnings, precautions, or contraindications listed in the XADAGO Package Insert that in the opinion of the PI would prevent appropriate treatment with XADAGO or impair study participation (e.g., pregnancy, lactation, severe hepatic impairment, etc.).
  2. Participation in any other clinical trial of an investigational drug or device within 4 weeks prior to the Baseline Visit or at any time during the study.
  3. Patient is currently receiving chemotherapy or radiation for any form of cancer (if history of cancer, must be in clinical remission at study entry) or currently receiving immunotherapy.
  4. Patients with conditions that are likely to prevent them from accurately and reliably completing study assessments, including evidence of moderate or severe dementia as determined by the clinician (not to include mild cognitive impairment [MCI]); major psychiatric illness (specifically diagnosis of schizophrenia, bipolar disorder or a history of attempted suicide); and/or severe and progressive medical illness (including terminal cancer, end-stage renal disease +/- undergoing dialysis).
  5. Severe or unpredictable dyskinesia at the time of the Baseline Visit.
  6. Previous participation in this study; a patient may not re-enroll after prior discontinuation or completion
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
164 participants (actual)
Patient registry
No

Groups and cohorts

  • Parkinson's Disease Patients

    PD patients who have been newly prescribed safinamide (XADAGO) for the treatment of OFF episodes as described in the XADAGO Package Insert

    Drug: XADAGO (safinamide)

Interventions

  • XADAGO (safinamide) is a monoamine oxidase type B (MAO-B) inhibitor indicated as adjunctive treatment to levodopa/carbidopa in patients with Parkinson's disease experiencing off episodes.

    Also known as: XADAGO, safinamide

06

What researchers measure

Primary outcomes

  1. Change From Baseline in Movement Disorders Society -Unified Parkinson's Disease Rating Scale (MDS-UPDRS)

    MDS-UPDRS: 4-part assessment of the multiple clinical disabilities of Parkinson's Disease. Part I (13 items; Score 0-52) examines non-motor experiences, Part II (13 items; Score 0-52) examines motor experiences, Part III (33 items; Score 0-132) examines the cardinal motor disabilities and Part IV (6 items; Score 0-24) examines motor complications. Each Part has 0-4 ratings, where 0 (no problems) to 4 (severe problems) and scores for each part are summed to calculate the total score which ranges from 0-260. Higher scores represent worse outcomes for each part and total score.

    Time frame: Baseline to Study Day 60

  2. Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Scores

    PDQ-39 is a patient-reported outcome designed to address aspects of functioning and well-being for those affected by PD. Each of the 39 items is rated using a 5 point Likert scale with 0 for never having difficulties/problems and 4 for always having difficulties/problems. The sum score of the 39 items will be calculated and used for analysis, with scores ranging from 0-156. Higher scores indicate worse outcomes.

    Time frame: Baseline to Study Day 60

  3. Change From Baseline in Montreal Cognitive Assessment (MoCA) Total Score.

    MoCA is a 30-point, 1-page test designed to assess several cognitive domains, including visuospatial abilities (5 points), naming (3 points), attention (6 points), language (3 points), abstraction (2 points), delayed recall (5 points), and orientation to time and place (6 points). The total score ranges from 0 to 30, with higher scores indicating better performances.

    Time frame: Baseline to Study Day 60

  4. Treatment Satisfaction Questionnaire for Medication (TSQM-9) Scores

    TSQM-9 consists of 9 questions to assess patients' satisfaction with medication using a range of responses from 1 (extremely dissatisfied) to (7 extremely satisfied). This patient reported outcome provides scores on three parts: effectiveness, convenience, and global satisfaction. The sum of the 9-questions will be calculated and used for analysis. The total score ranges from 0 to 63, with higher scores indicating better treatment satisfaction.

    Time frame: Study Day 60

  5. Clinical Global Impression of Change (CGI-C)

    CGI-C is a 7-point scale depicting a Principal Investigator or certified Health Care Professional designee rating of the patient's overall improvement using a range of responses from a minimum of 1 (very much improved) to a maximum of 7 (very much worse).

    Time frame: Study Day 60

  6. Patient Global Impression of Change (PGI-C)

    PGI-C is a 7-point scale depicting a patient's rating of overall improvement using a range of responses from 1 (very much improved) to 7 (very much worse).

    Time frame: Study Day 60

07

Results

Posted Feb 18, 2021

Participant flow

2 Month Study Completion
Participant flow — 2 Month Study Completion
MilestoneDA SwitchersMAO-B SwitchersMAO-B Naive
Started234128
Completed230123
Not completed045
4 Month Study Optional Extension
Participant flow — 4 Month Study Optional Extension
MilestoneDA SwitchersMAO-B SwitchersMAO-B Naive
Started11064
Completed0841
Not completed1223

Outcome measures

PrimaryChange From Baseline in Movement Disorders Society -Unified Parkinson's Disease Rating Scale (MDS-UPDRS)

MDS-UPDRS: 4-part assessment of the multiple clinical disabilities of Parkinson's Disease. Part I (13 items; Score 0-52) examines non-motor experiences, Part II (13 items; Score 0-52) examines motor experiences, Part III (33 items; Score 0-132) examines the cardinal motor disabilities and Part IV (6 items; Score 0-24) examines motor complications. Each Part has 0-4 ratings, where 0 (no problems) to 4 (severe problems) and scores for each part are summed to calculate the total score which ranges from 0-260. Higher scores represent worse outcomes for each part and total score.

Time frame:
Baseline to Study Day 60
Reported as:
Mean · score on a scale
Change From Baseline in Movement Disorders Society -Unified Parkinson's Disease Rating Scale (MDS-UPDRS)
score on a scaleDA SwitchersMAO-B SwitchersMAO-B Naive
Part 1-5.0 ± 5.66-1.0 ± 5.13-1.9 ± 6.16
Part 20.0 ± 2.83-2.3 ± 5.40-2.6 ± 5.28
Part 31.5 ± 2.12-3.3 ± 7.78-4.5 ± 11.10
Part 4-0.5 ± 3.54-0.3 ± 3.28-0.2 ± 3.05
PrimaryChange From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Scores

PDQ-39 is a patient-reported outcome designed to address aspects of functioning and well-being for those affected by PD. Each of the 39 items is rated using a 5 point Likert scale with 0 for never having difficulties/problems and 4 for always having difficulties/problems. The sum score of the 39 items will be calculated and used for analysis, with scores ranging from 0-156. Higher scores indicate worse outcomes.

Time frame:
Baseline to Study Day 60
Reported as:
Mean · score on a scale
Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Scores
score on a scaleDA SwitchersMAO-B SwitchersMAO-B Naive
Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Scores-1.80.5 ± 9.73-0.5 ± 9.90
PrimaryChange From Baseline in Montreal Cognitive Assessment (MoCA) Total Score.

MoCA is a 30-point, 1-page test designed to assess several cognitive domains, including visuospatial abilities (5 points), naming (3 points), attention (6 points), language (3 points), abstraction (2 points), delayed recall (5 points), and orientation to time and place (6 points). The total score ranges from 0 to 30, with higher scores indicating better performances.

Time frame:
Baseline to Study Day 60
Reported as:
Mean · score on a scale
Change From Baseline in Montreal Cognitive Assessment (MoCA) Total Score.
score on a scaleDA SwitchersMAO-B SwitchersMAO-B Naive
Change From Baseline in Montreal Cognitive Assessment (MoCA) Total Score.0.0 ± 1.410.9 ± 2.410.4 ± 2.45
PrimaryTreatment Satisfaction Questionnaire for Medication (TSQM-9) Scores

TSQM-9 consists of 9 questions to assess patients' satisfaction with medication using a range of responses from 1 (extremely dissatisfied) to (7 extremely satisfied). This patient reported outcome provides scores on three parts: effectiveness, convenience, and global satisfaction. The sum of the 9-questions will be calculated and used for analysis. The total score ranges from 0 to 63, with higher scores indicating better treatment satisfaction.

Time frame:
Study Day 60
Reported as:
Mean · score on a scale
Treatment Satisfaction Questionnaire for Medication (TSQM-9) Scores
score on a scaleDA SwitchersMAO-B SwitchersMAO-B Naive
Treatment Satisfaction Questionnaire for Medication (TSQM-9) Scores56.038.9 ± 7.7341.0 ± 9.81
PrimaryClinical Global Impression of Change (CGI-C)

CGI-C is a 7-point scale depicting a Principal Investigator or certified Health Care Professional designee rating of the patient's overall improvement using a range of responses from a minimum of 1 (very much improved) to a maximum of 7 (very much worse).

Time frame:
Study Day 60
Reported as:
Count of participants · Participants
Clinical Global Impression of Change (CGI-C)
ParticipantsDA SwitchersMAO-B SwitchersMAO-B Naive
Very Much Improved0113
Much Improved1729
Minimally Improved01038
No Change1631
Minimally Worse027
Much Worse013
Very Much Worse000
PrimaryPatient Global Impression of Change (PGI-C)

PGI-C is a 7-point scale depicting a patient's rating of overall improvement using a range of responses from 1 (very much improved) to 7 (very much worse).

Time frame:
Study Day 60
Reported as:
Count of participants · Participants
Patient Global Impression of Change (PGI-C)
ParticipantsDA SwitchersMAO-B SwitchersMAO-B Naive
Very Much Improved019
Much Improved2325
Minimally Improved0931
No Change0830
Minimally Worse022
Much Worse022
Very Much Worse001

Adverse events

Collected over 6 months. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
DA Switchers0/2 (0%)0/2 (0%)1/2 (50%)
MAO-B Switchers0/34 (0%)2/34 (5.9%)8/34 (23.5%)
MAO-B Naive2/128 (1.6%)8/128 (6.3%)17/128 (13.3%)
Most frequent serious events
Showing 10 of 14
Most frequent serious events
EventDA SwitchersMAO-B SwitchersMAO-B Naive
DysarthriaNervous system disorders0/21/340/128
Peripheral arterial occlusive diseaseVascular disorders0/21/340/128
Myocardial infarctionCardiac disorders0/20/341/128
PalpitationsCardiac disorders0/20/341/128
Gastric ulcerGastrointestinal disorders0/20/341/128
Postoperataive ileusGastrointestinal disorders0/20/341/128
FallInjury, poisoning and procedural complications0/20/341/128
Pneumothorax traumaticInjury, poisoning and procedural complications0/20/341/128
Radius fractureInjury, poisoning and procedural complications0/20/341/128
Rib fractureInjury, poisoning and procedural complications0/20/341/128
Most frequent other events
Most frequent other events
EventDA SwitchersMAO-B SwitchersMAO-B Naive
TremorNervous system disorders1/21/342/128
NauseaGastrointestinal disorders0/23/349/128
FallInjury, poisoning and procedural complications0/22/3411/128
DizzinessNervous system disorders0/22/344/128
DyspnoeaRespiratory, thoracic and mediastinal disorders0/22/342/128

Baseline characteristics

Safety Population: All patients who sign informed consent for the study, complete baseline assessments, and receive at least 1 dose of XADAGO.

Age, Continuous
Age, Continuous(years)DA SwitchersMAO-BMAO-B NaiveTotal
Mean62.5 ± 6.3665.3 ± 8.2868.1 ± 7.7767.4 ± 7.92
Age, Customized
Age, Customized(Participants)DA SwitchersMAO-BMAO-B NaiveTotal
Age 30-651163956
Age >= 6511889108
Sex: Female, Male
Sex: Female, Male(Participants)DA SwitchersMAO-BMAO-B NaiveTotal
Female064349
Male22885115
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)DA SwitchersMAO-BMAO-B NaiveTotal
Hispanic or Latino0066
Not Hispanic or Latino234122158
Unknown or Not Reported0000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)DA SwitchersMAO-BMAO-B NaiveTotal
American Indian or Alaska Native0000
Asian0347
Native Hawaiian or Other Pacific Islander0000
Black or African American0112
White230121153
More than one race0000
Unknown or Not Reported0022
Height (cm)
Height (cm)(cm)DA SwitchersMAO-BMAO-B NaiveTotal
Mean179.6 ± 6.51173.1 ± 11.67171.0 ± 11.91171.6 ± 11.83
Weight (kg)
Weight (kg)(kg)DA SwitchersMAO-BMAO-B NaiveTotal
Mean96.2 ± 0.6485.0 ± 16.9588.1 ± 22.6087.6 ± 21.42
BMI (kg/m^2)
BMI (kg/m^2)(kg/m^2)DA SwitchersMAO-BMAO-B NaiveTotal
Mean29.9 ± 2.3628.4 ± 5.1730.1 ± 7.0529.7 ± 6.68

1 further baseline measures are reported on the registry.

08

Study locations

30 sites
  • Alabama Neurology Associates
    Homewood, Alabama 35244, United States
  • Movement Disorders Neurology, Inc.
    Bakersfield, California 93312, United States
  • B.E.S.T. Center of Orange County
    Laguna Hills, California 92653, United States
  • Valley Parkinson Clinic
    Los Gatos, California 95032, United States
  • UC Davis Medical Center
    Sacramento, California 95817, United States
  • Hartford Healthcare
    Vernon, Connecticut 06066, United States
  • Georgetown University Hospital
    Washington D.C., District of Columbia 20007, United States
  • Parkinson's Disease and Movement Disorders Center of Boca Raton
    Boca Raton, Florida 33486, United States
  • Neuron Research
    Naples, Florida 34108, United States
  • Parkinson's Disease Treatment Center of SW Florida
    Port Charlotte, Florida 33980, United States
  • Sarasota Memorial Hospital Clinical Research Cener
    Sarasota, Florida 34239, United States
  • Central DuPage Hospital
    Winfield, Illinois 60190, United States
  • University of Kansas Medical Center
    Kansas City, Kansas 66160, United States
  • Baptist Health System
    Richmond, Kentucky 40475, United States
  • Southeast Neuroscience Center, LLC
    Gray, Louisiana 70359, United States
  • Lester and Cox Medical Center
    Springfield, Missouri 65807, United States
  • Neurological Associates of Long Island, PC
    Lake Success, New York 11042, United States
  • NYU Winthrop Hospital
    Mineola, New York 11501, United States
  • FryeCare Neurology
    Hickory, North Carolina 28602, United States
  • Dayton Center for Neurological Disorders
    Centerville, Ohio 45459, United States
  • The Movement Disorder Clinic of Oklahoma
    Tulsa, Oklahoma 74137, United States
  • Neurology and Stroke Associates
    Lititz, Pennsylvania 17543, United States
  • Prisma Health
    Greenville, South Carolina 29615, United States
  • Covenant Medical Group
    Lubbock, Texas 79410, United States
  • Texas Institute for Neurological Disorders
    Sherman, Texas 75092, United States
  • Houston Methodist - Sugar Land
    Sugar Land, Texas 77479, United States
  • Baylor Scott and White Health
    Temple, Texas 76508, United States
  • Inova Medical Group- Neurology I
    Alexandria, Virginia 22311, United States
  • Meridian Clinical Research, LLC
    Norfolk, Virginia 23502, United States
  • Puget Sound Neurology
    Tacoma, Washington 98409, United States
09

References and documents

Study documents

  • Study protocol · Oct 12, 2018
  • Statistical analysis plan · Feb 8, 2020

Documents are hosted by the registry — open the source record to download them.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Nov 2017 to primary completion in Dec 2019, 24 months.

Results were first posted in Feb 2021, 1 year 1 month after primary completion.

Of 59 industry-sponsored observational studies under Parkinson Disease, half reached primary completion within 45 months of starting (the median), counting those still running; a quarter within 19 and three quarters within 64. This study's 24 months is below that.

Counting every sponsor, half of 440 studies reached it within 48 months; a quarter within 21 and three quarters within 112.

How these figures are worked out, and which studies are left out of them.

Registered
May 1, 2019
First posted
May 10, 2019
StartActual
Nov 30, 2017
Primary completionActual
Dec 23, 2019
CompletionActual
Jan 10, 2020
Results first posted
Feb 18, 2021
Last update
Jun 7, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 7, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03944785
Responsible party
Sponsor
First posted
May 10, 2019
Start date
Nov 30, 2017
Primary completion
Dec 23, 2019
Completion
Jan 10, 2020
Results posted
Feb 18, 2021
Last update
Jun 7, 2023

Study contacts

Najeebah Abdul-Musawir, MD,MBA
study director · Supernus Pharmaceuticals, Inc.

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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